Sorting/Grouping Emails in Outlook
To quickly view all emails from one person:
Highlight one email from that person. Then click heading label at the top of the From: column
This will cause emails in that mailbox folder to be sorted on whom the email is from, and also place you down the list within the emails from the person you highlighted.
To show by date, grouping dates:
Click on Received: heading label to sort on Date. (Note: clicking a second time on the same heading label sorts in reverse order) Open the View Menu > Arrange By > Show in Groups. The emails within the folder will be in Date order and dates will be grouped.